Powder-drier.



A. F. GBBHARDT 6L W. S. HUTCHINGS. I

POWDER DRIBR.

ArrLIoATIoN FILED 9911.29, 1999.

937,591., Patented 009191999.

- A. F. GEBHARDT 6L W. S. HUTGHINGS.

POWDER DRIER.

APPLIOATION rILED-un. 29, 1909.

Patented 091;.- 19, 1999.

3 SHEETS-SHEET 2.

A. P. GBBHARDT & W. S. HUTGHINGS.

POWDER DRIER.

APPLIOATION FILED JAN. 2a, 1909.

www

Patented Oct. 19, 1909.

3 SHEETS-SHEET 3.

l mnnzw4 B. Gamm co., PMoTo-LITMUGRAPx-lins. WASNINGTON, DA a UNITED sTATEs PATENT oEEIoE.

AUGUSTUS F. GEBHARDT AND WILLIAM S. HUTCI-IINGS, OF JERMYN, PENNSYLVANIA.

POWDER-BRIEF'.

Specicaton of Letters Patent.

Patented Oct. 19, 1909;

Application filed. January 28, 1909. Serial No. 474,734.

To all 'whom it may concern.:

Be it known that we, AUGUSTUS F. GEB-- of the United States, residing at Jermyn, in

the county of Lackawanna and State of Pennsylvania, have invented certain new and useful Improvements in Powder- Driers; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to driers, and while especially adapted for use in drying gun powder and other explosives at the factory, is not limited in its usefulness to drying such material.

An object of the present invention is to provide a portable body comprising a`plurality of thin compartments having ventilated or foraminous sides, round, through and between which air may be freely circulated for the purpose of drying the contents of such compartments.

A further object of the invention is to provide a body containin the drying com artments as above descri ed, which said ody is mounted upon wheels or other means for convenient transportation and with improved means for discharging the contents of the drying compartments.

With these and other objects in view, the invention comprises certain novel constructions, combinations and arrangements of parts, as will be hereinafter fully described and claimed.

In the drawings :-Figure 1 is a perspective view of an embodiment of the present invention. Fig. 2 is a view of the drier in end elevation with the end closure removed. Fig. 3 is a view in vertical, transverse secfffyrtion through the several drying compartments. Fig. 4 1s a longitudinal, vertical section taken on line 4 4 of Figs. 2 and 3 and showing one of the inner compartments in side elevation. Fig. 5 is a transverse, horizontal section through the end closure, and a fragment of one of the compartments showing the bottom thereof.

Like characters of reference designate corresponding parts throughout the several views.

While not specifically limited to the exact embodiment shown, the preferred embodiment of the present invention comprises a body made up of side frame-work 10 connected at opposite ends by the upper cross pieces 11 and the lower cross pieces. 12. Extending longitudinally between the lower end cross pieces 12 area plurality of strips 13 forming bottoms of the compartments as hereinafter more fully described. Extending vertically between the upper cross pieces 11 and the lower cross pieces 12 are a plurality of strips 14 and other strips as 15 extend longitudinally of the device between the upper cross pieces 11.

The bottoms 13, uprights 14 and longitudinal strips 15 form the exterior frames upon which are secured any approved foraminous material as the wire screen 16 forming the compartments open at the top but closed at the bottom by the bottom members 13. To add strength and rigidity` to the fabrics-16 a plurality of longitudinal strips 17 are also provided and vertical or central uprights 18 are used upon the outer side of the outer compartments, it not being usually found necessary to further strengthen the inner compartments.

As seen from Fig. 2 the compartments as above described are open at both ends and for the purpose of closing such compartments a gate is employed comprising the upper and lower cross pieces 19 and 20 respectively, carrying spaced uprights 21, rabbeted along the edge as shown at 22 in Fig. 5 so that the end uprights 14 it within such rabbets. At the lower corners the base frame-work is provided with straps or ears 23 which maintain the gate in position and with buttons or other securing means as 24 at the upper end adapted to removably engage the upper edge to hold it in closed position. The body is preferably carried upon wheels as 25 journaled in any approved manner upon brackets 26 and strips 27 extend along the sides of the body and terminate in hand holds 28 whereby the body may be grasped by the hand of the operator and moved as found necessary.

In operation as used for drying powder at a powder mill the drier with the 'end gates in closed position is moved under the discharge spout and the several compartments filled directly from such spout. The drier is moved upon its own wheels to the drying room where it is allowed to stand subject to the circulating heated air until it is thoroughly dried. It is then removed from the drying room to storage or other place where it is desired to dump the drier, whereupon one or both of the gates are moved and the compartments dumped by simply tilting the body upon one pair of its wheels.

It will be noted that the several compartments forming the body of the drier are all spaced apart and that circulation is provided for between and around all of such compartments, the space between being open both above and below as well as at opposite ends and the perforate ends of the sides of such compartments permit also the circulation of the dry air through such compartments as well as around them.

What we claim is:-

l. In a drier, a wheeled frame, a plurality of compartments carried by the frame and spaced apart in a plurality of vertical planes, said compartments being open at one end, and a gate closure comprising` spaced strips adapted to close the open ends of the spaced compartments. y

2. In a drier, a wheeled frame, a plurality of ventilated compartments carried by the frame, such compartments being open at one end, hand holds formed at the ends of the drier, and a gated closure adapted to close the ends of the compartments.

3. In a drier, a frame having. perforate sides and open at one end, ears formed at the bottom of the frame, a closure adapted to engage the ears and close the end of the frame, and securing means adapted to re movably engage the closure and hold itin position.

4. In a device of the class described, a receptacle formed with a plurality of adjacent compartments having foraminous sides and a slatted closure adapted to close the ends of In testimony whereof we ailiX our signatures in the presence of two witnesses.

AUGUSTUS F.- GEBHARDT. WILLIAM S. HUTCHINGS.

l/Vitnesses:

W. W. BAYLoR, J. M. SHEFFIELD. 

